/*
*    Qizx/open 3.0 beta
*
* This code is the open-source version of Qizx.
* Copyright (C) 2004-2009 Axyana Software -- All rights reserved.
*
* The contents of this file are subject to the Mozilla Public License 
*  Version 1.1 (the "License"); you may not use this file except in 
*  compliance with the License. You may obtain a copy of the License at
*  http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
*  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
*  for the specific language governing rights and limitations under the
*  License.
*
* The Initial Developer of the Original Code is Xavier Franc - Axyana Software.
*
*/
using System;
using XQValue = System.Qizx.XQuery.XQValue;
namespace System.Qizx.XQuery.Dt
{
	
	/// <summary> A scalar Boolean value.</summary>
	public class SingleBoolean:BooleanValue
	{
		public override bool ValueAsBoolean
		{
			get
			{
				return value;
			}
			
		}
		public override bool Value
		{
			get
			{
				return value;
			}
			
		}
		private bool value;
		private bool started = false;
		
		public SingleBoolean(bool value)
		{
			this.value = value;
		}
		
		public override bool Next()
		{
			return started?false:(started = true);
		}
		
		public override XQValue BornAgain()
		{
			return new SingleBoolean(value);
		}
		
		public override string ToString()
		{
			return "SingleBoolean " + Value;
		}
	}
}